illustrates a typical application circuit (output
source current operation).
shows the sensor output signal relative to
pressure input. Typical minimum and maximum output curves
are shown for operation over 0 to 85°C temperature range.
The output will saturate outside of the rated pressure range.
A gel die coat isolates the die surface and wire bonds from
the environment, while allowing the pressure signal to be
+5.0
V
transmitted to the silicon diaphragm. The MPXHZ6250A
series pressure sensor operating characteristics, internal
reliability and qualification tests are based on use of dry air as
the pressure media. Media other than dry air may have
adverse effects on sensor performance and long-term
reliability. Contact the factory for information regarding media
compatibility in your application.
V
S
Pin 2
100 nF
MPXHZ6250A
V
OUT
Pin 4
GND Pin 3
47 pF
51 K
To ADC
Figure 2. Typical Application Circuit
(Output Source Current Operation)
5.0
4.5
4.0
3.5
Output (Volts)
3.0
2.5
2.0
1.5
1.0
0.5
0
20
31
43
54
66
77
89
100
112
123
135
146
158
169
181
192
204
215
227
238
250
Pressure (Reference to Sealed Vacuum) in kPa
MIN
MAX
TYP
Transfer Function:
V
out
= V
s
*(0.0040*P-0.040) ± Error
V
S
= 5.0 Vdc
Temperature = 0 to 85°C
Figure 3. Output versus Absolute Pressure
MPXHZ6250A
4
Sensors
Freescale Semiconductor
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
